Will GM still service all Saturn vehicles and sell parts?

YES

Any GM dealer can still service your Saturn, Hummer, or Pontiac. Its the law that they must provide service parts for at least 10 years after production ends. On top of that the Chevy versions of the Saturns are still in production.

They will also still cover your warranty just as before.

Other GM dealerships (most like the Chevrolet dealerships) will still be suited to handle any repairs or parts needed for Saturn. Since Saturns are mostly rebadged Chevrolets the parts should be plentiful and easy to find. If you own a Saturn and need to get it serviced after the dealers close in a year or two, I would just call up the local GM dealership to make sure you can get what you need…just to be sure.

Any GM dealership will continue warranty work. Parts will also be availible for several years. You can still buy parts for an Oldsmobile, and GM stopped making these in 2002.

10 years from now may be a different story